From: Adrian Hunter Date: Wed, 5 Oct 2022 10:19:40 +0000 (+0300) Subject: mmc: sdhci: Replace kmap_atomic() with kmap_local_page() X-Git-Tag: microblaze-v6.6~1557^2~101 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=47722e3fd92482c036be43a4ba62698c8b8b63b8;p=linux-2.6-microblaze.git mmc: sdhci: Replace kmap_atomic() with kmap_local_page() kmap_local_page() is equivalent to kmap_atomic() except that it does not disable page faults or preemption. Where possible kmap_local_page() is preferred to kmap_atomic() - refer kernel highmem documentation. In this case, there is no need to disable page faults or preemption, so replace kmap_atomic() with kmap_local_page(), and, correspondingly, kunmap_atomic() with kunmap_local(). Signed-off-by: Adrian Hunter Link: https://lore.kernel.org/r/20221005101951.3165-4-adrian.hunter@intel.com Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index a14cc08e5318..ebb71d235c38 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -698,12 +698,12 @@ static int sdhci_pre_dma_transfer(struct sdhci_host *host, static char *sdhci_kmap_atomic(struct scatterlist *sg) { - return kmap_atomic(sg_page(sg)) + sg->offset; + return kmap_local_page(sg_page(sg)) + sg->offset; } static void sdhci_kunmap_atomic(void *buffer) { - kunmap_atomic(buffer); + kunmap_local(buffer); } void sdhci_adma_write_desc(struct sdhci_host *host, void **desc,